Reciprocating shower



Nov. 3, 1942.

A. E. BROUGHTON REGIPROCATING SHOWER Original Filed April 14, 1959 3Sheets-Sheet 1 Inventor izl 1942- AQE. BROUGHTON R ECIPROCATING SHOWEROriginal Filed April 14, 1939 3 Sheets-Sheet 2 .ZIZ/WW A Ziarney;

NOV. 3, 1942 BRQUGHTON 2,300,909

- -RECIPR(I)CATING SHOWER Original Filed April 14, 1939 3 Sheet s-Sheet3 a q 1/ R w 3 Aiiorneys Patented Nov. 3, 1942 UNITED STATES PATENT()FFICE I RECIPROCATING SHOWER 3 Claims.

This invention relates to showers for paper making .machines and othermachines where showers are required.

It is one of the objects of the present invention to provide a novel andimproved shower for paper making machines and the like which is compact,light in weight, inexpensive and efficient and can be installed readilyon such machines.

Another object is to providea novel and improved reciprocating showerwhich includes'no hose or flexible conduits for supplying the fluid tothe shower head.

Another important object of the invention is to provide a reciprocatingshower which can be substituted for existing stationary showers on papermaking machines and willgreatly economize on the quantity of wateremployed and will be highly efiicient in action.

A more specific object of'the invention is to provide a shower having arigid and stationary water supply pipe, a sleeve-like spray headslidably mounted on the supply pipe and packed relative thereto, thestationary supply pipe com-.

municating with the sleeve-like spray head and means for reciprocatingthe spray head on the supply pipe.

The present application is a division of my United States applicationfor patent entitled Reciprocating shower, Serial No. 267,772, filedApril 14, 1939.

The objects and advantages of the invention will more fully appear fromthe following description made in connection with theaccompanying-drawings, wherein like reference characters refer to thesame or similar parts throughout the various views, and in which,

Fig. 1 is a vertical longitudinal section taken through the left handportion of a shower embodying the invention and the left hand portion ofa rotary cylindrical screen in conjunction with wh ch the shower isused;

Fig. 2 is a similar section through the right hand portion of the showerand screen:

Fig. 3 is a view in side elevation of the right hand end portion of theshower shown in Figs. 1 and 2;

Fig. 4 is a view in front elevation looking toward the left hand end ofthe structure shown in Fig. 1;

Fig. 5 is a vertical section taken on the lin 5-5 of Fig.1 as indicatedby the arrows;

Fig. 6 is a view in side elevation showing a portion of the showerillustrated in Fig. 6 and part of the vat, the shower head being turnedupwardly slightly from the position shown in Fig. 6 to show the spraynozzles; and

Fig. 8 is a view similar to Fig. 7 but showing the right hand endportion of the shower and vat illustrated in Fig, 6.

Referring first to the embodiment of the invention illustrated in Figs.1, 2, 3, 4 and 5, portions of a rotary screen [0 of the type commonlyemployed in paper making machines for removing the lumps and clottedmasses from the watered pulp prior to its passage to the 'Fourdrinierwire, are illustrated. This screen I0 includes a closed end Illa whichis fixed to the shaft (not illustrated) that rotates the screen and itfurther includes a ring-like head l0b having an opening Hie therein andforming an open end for the screen. The foraminous screen proper whichacts as a strainer and is designated by the numeral 10c is cylindricaland extends between the closed end Mia and the head l0b. This screenproper lllc is provided with a multiplicity of very fine slots l0brunning circumferentially of the screen and spaced longitudinally of thescreen from each other, these slots being of rather short length andbeing interrupted by solid portions of the screen. In the drawings inFigs. 1 and 2 the width of the slots is generally exaggerated as is alsothe spacing between the slots. The screen l0 works within a trough, notillustrated, and the watered pulp is fed onto the exterior of the screento pass through the slots I0d into the interior thereof and the screenacts as a strainer to prevent the passage of lumps, clots, etc., throughthe screen.

In connection with such a screen, as screen I0 illustrated, it is nowthe common paper mill practice to utilize a stationary shower which runsinto the screen through the open end thereof and sprays onto the screenfrom the inner side thereof to remove any material that may clog theslots Hid oi. the screen. With such stationary showers it is the commonpractice to employ from between 3,000 to 6,000 gallons of water per hourto clean the screen.

The shower of the present invention is used to replace the old type ofstationary shower and to reduce the water consumption of from 3,000 to5,000 gallons per hour to in the neighborhood of 100 gallons per hourwhile producing comparslightlydifierent embodiment of the invention ableor better cleaning results.

lustrated includes a bow ll of angle bar construction supported in anysuitable manner as from the bottom of the trough within which the screenIt works, and a cross bar 2 which runs across the bow H in downwardlyspaced relation from the top thereof. Secured as by bolts l3 and H tothe bow II and cross bar I2 is a mounting bracket I! for my shower. 7This mounting bracket l has two horizontal openings therethrough, in theupper one of which a water supply pipe I8 is mounted. As shown, thissupply pipe l8 includes a short horizontal section |8a mounted in thebracket l5 and a longer horizontal section |8b closed at its end remotefrom the bracket II by a plug The supply pipe l8 runs into the screen|ll through the open end of the same and extends to a point close to theclosed end Illa of the screen. The supply pipe is located at a levelspaced from but quite close to the top of the screen. A water feed pipel8, connecting with any suitable source of water supply, connects to astrainer l8 and this strainer in turn connects with an elbow 20 attachedto the outer end of the supply pipe It. A spray head 2| is mounted forsliding reciprocating movement on the section |8b of the supply pipe l8.This spray head consists of a sleevelike pipe carrying a plurality ofspaced spray nozzles 22 which are directed upwardly toward the top ofthe screen Ill. The two ends of the spray head 2| are closed byring-like plugs 23 carrying packing 24 so that while reciprocation ofthe spray head 2| is permitted relative to the supply pipe I, watertight connections are made between the ends of the spray head and thesection |3b of the supply pipe at all times. Fluid communication betweenthe supply pipe l8 and the spray head 2| is afforded by means ofopenings 25 in the section lib of the supply pipe, these openings, ofcourse, being located between the two plugs 23 within the limits ofreciprocation of the spray head 2|. In order to permit spraying of theextreme right hand end portion of the screen and still to permit theright hand end of the supply pipe It to be spaced somewhat to the leftof the closed end Illa of the screen, an auxiliary pipe 28 carryingspray nozzles 21 is connected to the right hand end portion of the sprayhead 2| to extend beyond the right hand plug 23 of the spray head.-

The supporting bracket l5 carries in the lower opening thereof asupporting tube 28. Thi tube is preferably made in two sections 28a and28b and the inner section extends into the screen I. and carries at itsinner end a securing bracket 28 which is attached to the inner end ofthe supply pipe I 6 as by means of a pin 30. The supporting bracket l5and tube 28 thus form the sole support for the supply pipe l6 and thespray head 2| and, of course, the bracket I5 is located at one end ofthe screen |0 so that while the supply pipe and spray head are verystrongly supported, the supporting structure does not interfere with themovement of the screen Ill and no alterations must be made in the screento install the present shower.

Carried by the outer end of the tube 28 is a fluid pressure motor 3| ofthe type shown and described in my pending application for patententitled Reciprocating mechanism for paper making machines," Serial No.159,305, filed Auggust 16, 1937. This fluid pressure motor includes apiston 3|a working within a cylinder 3") and the piston is reciprocatedin the cylinder preferably by air pressure. Inasmuch as any smallcompact motor .could be substituted for the motor 3| to causereciprocation of the parts, further description of the motor 3| isthought unnecessary here.. The piston 3|a is connected to a piston rod32 which runs through apacking gland 33 in the end of the motor 3|connected to the tube 28. The free end of the pistonrod 32 is connectedby a universal joint 34 to a rod 35 working within the tube 28 andmounted for reciprocation therein on a ring bearing 38 carried by thetube 28. The section 28b of the tube 28 is provided at its upper partnear its inner end with a slot 31 of a length slightly greater than thelength of travel of the piston 3|a and piston rod 32. Secured to theinner end of the spray head 2| is an arm 28 which projects downwardlyfrom the spray head through the slot 31 into the tube 28 and isconnected to the inner end of the rod 35. With this construction it willbe seen that as the motor 3| reciprocates the piston rod 32 the rod 35will be similarly reciprocated and this rod being connected to the sprayhead 2| through the arm 38, the spray head will be reciprocated back andforth on the rigid supply tub Hi.

When a shower is in operation water furnished by the pipe l8 will runinto the supply pipe l8 and thence through the opening 25 into thesleeve-like spray head 2| to be ejected from the spray nozzles 22 infine needle-like sprays which strike the inner surface of the screenIll. The reciprocation of the spray head 2| will cause the same to movelongitudinally of the axis of rotation of the screen Ill and ccordinglythe spray jets will move transversely o the screen slots ||Ib while thescreen is being rotated. These spray jets due to the reciprocation ofthe spray head, will strike the slots of the screen at varying angles,and will efllciently remove any clots or other obstructions in the slotslob. By reason of the fact that the spray head is under reciprocation atall times, rather than stationary, but a small quantity of water isrequired to keep the screen clean in comparison to the large quantity ofwater that has customarily been used for the same purpose in connectionwith the usual stationary showers.

Referring now to the form of the invention shown in Figs. 6, 7 and 8, ashower is illustrated which may be used for cleaning a cylinder mold. Avat is designated by the numeral 39 and working in this vat is acylinder 48 over which the felt 4| travels. An upper cylinder 42 is alsoshown. A pair of mounting brackets 43 are secured to two sides of thevat 39 at opposite points and these brackets carry a rigid water supplypipe 44 to which water is supplied from a, pipe 45 and a strainer 46.The right end of the supply pipe 44, as viewed, is closed by plug 41. Aspray head 48 is mounted for reciprocatory movement on the supply pipe44 and this spray head consists of a sleeve carrying a number of spraynozzles 49, the sleeve being closed at its ends of ring-like plugs 58carrying packing 5|. A tube 52 is also carried by the two brackets 43 toextend across the vat 39 and the left hand portion of this tube, asshown, forms the cylinder for a reciprocating motor 53 of the samegeneral type as that previously referred to, but having a, considerablylonger throw. This motor includes a piston 53a to which a piston rod 54is connected. This piston rod 54 in turn is connected to a connectingrod 55 which extends into the right hand section of the tube 52 and hasattached to its right end an arm 56 projecting through a slot 51 in thetube 52 and connected to the right end of the spray head 48. It will beseen that the structure shown in Figs. 6, 7 and 8 is very similar to thestructure shown in Figs. 1 to 4 except that -the shower shown in Figs.6, 7 and 8 is supported at both ends while the shower shown in Figs. 1to is supported merely at one end.

It will be seen that a highly eflicient reciprocating shower has beenprovided to operate for the purposes intended.

It will, of course, be understood that various changes may be made inthe form, details, arrangement and proportions of the various partswithout departure from the scope of the invention which generally statedconsists in the matter shown and described and set forth in the appendedclaims.

What is claimed is:

1. A shower for paper making machines and the like comprising asupporting bracket, a rigid water supply pipe carried by said bracketand projecting inwardly therefrom, means for supplying water to saidsupply pipe, a sleeve forming a spray head surrounding a portion of saidsupply pipe and slidable thereon, packing between the ends of saidsleeve and said supply pipe, spray nozzles carried by said sleeve, saidsupply pipehaving an opening therein located between the packing at thetwo ends of said sleeve for supplying water to said sleeve, a supportingmember attached to said bracket and running inwardly therefrom andconnected to the inner end of said supply pipe, a connecting rodattached to said sleeve and means carried by said bracket for impartinga reciprocating movement to said connecting rod, said bracket formingthe sole support for all other parts of the shower.

2. A shower for paper making machines and the like comprising asupporting bracket, a rigid water supply pipe carried by said bracketand projecting inwardly therefrom, means for supplying water to saidsupply pipe, a sleeve forming a spray head surrounding a portion of saidsupply pipe, packing between the ends of said sleeve and said supplypipe, said sleeve having spray outlets, said supply pipe having anopening there-. in located between the packingat the two ends of saidsleeve for supplying water to said sleeve, a tube running parallel tosaid supply pipe adjacent thereto, said tube having a longitudinal slottherein, a connecting rod working within saidtube, an arm secured tosaid rod projecting through said slot and connected to said sleeve,means for reciprocating said rod in said tube and means rigidlyconnecting said supply pipe and said tube at their ends remote from saidbracket.

3. A shower for paper making machines and the like comprising asupporting bracket, a rigid water supply pipe carried by said bracketand projecting inwardly therefrom, means for supplying water to saidsupply pipe, a sleeve forming a spray head surrounding a portion of saidsupply pipe and slidable thereon, packing between the ends of saidsleeve and said supply pipe, said sleeve having spray apertures therein,said supply pipe having an opening therein located between the packingbetween the two ends of said sleeve for supplying water to the sleeve, asupply pipe supporting 'tube attached to said bracket and runninginwardly therefrom parallel to said water supply pipe and connected tosaid supply pipe at its end remote from said bracket, a connecting rodworking within said tube, said tube having a longitudinal slot cuttherein, an arm secured to said rod running through said slot andconnected to said sleeve and means carried by said bracket forreciprocating said rod.

ARTHUR E. BROUGHTON.

